Heybike · Folding
Heybike Mars 3.0: real range, hills and charging
A 180 lb rider on the Heybike Mars 3.0 at 16 mph with relaxed pedaling over rolling hills (±2%) on pavement can expect about 37 miles per charge (30–44 mi), using 15.2 Wh per mile. The brand claims up to 65 miles. That is about 57% of the claim. On throttle only over hills it drops to about 25 miles.
$1,199
624
Wh battery
750
W motor
28
mph max
Price checked 2026-10-20. We may earn a commission.
How far does the Heybike Mars 3.0 go for your weight?
Miles per full charge on a new battery at 70°F on pavement, no wind. Each number is the middle of a ±20% band. Heybike claims up to 65 miles (no conditions stated).
| Rider weight | Easy 12 mph | Everyday 16 mph | Fast 20 mph | Throttle, hills |
|---|---|---|---|---|
| 150 lb | 60 mi (48–71) | 39 mi (31–47) | 27 mi (22–33) | 27 mi (22–33) |
| 200 lb | 52 mi (42–63) | 36 mi (29–43) | 26 mi (21–31) | 23 mi (19–28) |
| 250 lb | 46 mi (37–56) | 32 mi (25–38) | 24 mi (19–29) | 21 mi (16–25) |
| 300 lb | 42 mi (33–50) | 28 mi (23–34) | 23 mi (18–28) | 18 mi (15–22) |
- Easy 12 mph: 12 mph, relaxed pedaling, flat
- Everyday 16 mph: 16 mph, relaxed pedaling, rolling hills
- Fast 20 mph: 20 mph, relaxed pedaling, rolling hills
- Throttle, hills: 15 mph, no pedaling, hilly
Can the Heybike Mars 3.0 climb hills?
Highest steady speed on each grade, motor at its 1,400 W peak, limited by its 95 Nm of torque. A 10% grade is a steep city street; 15% is a hard hill.
| Rider | 5% grade | 10% grade | 15% grade |
|---|---|---|---|
| 180 lb, throttle | 23 mph | 15 mph | 11 mph |
| 180 lb, pedaling | 24 mph | 16 mph | 12 mph |
| 250 lb, throttle | 21 mph | 12 mph | 9 mph |
| 250 lb, pedaling | 22 mph | 13 mph | 10 mph |
Steepest grade at 8 mph (180 lb): 22% on throttle, 24% with moderate pedaling. Peak power lasts for short hills; on long climbs motors fall back toward their 750 W nominal rating.
Charging time and cost
Empty to full (2 A)
5 h 51 min
With a 5 A charger
2 h 57 min
Cost per full charge
$0.13
Cost per mile
0.33¢
US average residential electricity, 18.31¢/kWh (EIA, July 2026), 85% charger efficiency. Charge time: constant current to ~85%, then about an hour of top-off.
Range in cold weather
70°F
37
mi · 100% cap.
50°F
34
mi · 94% cap.
32°F
30
mi · 85% cap.
20°F
26
mi · 75% cap.
Everyday scenario, 180 lb rider. Capacity loss is temporary; store and charge the battery indoors and never charge it below freezing.
Simulate your own ride on the Mars 3.0
Heybike Mars 3.0 specs
From the Heybike product page, checked 2026-10-20. est. marks values Heybike doesn't confirm.
- Price
- $1,099 (list $1,199)
- Class
- Class Not stated, throttle est.
Source note
Class not stated on the Mars 3.0 page (sibling Ranger 3.0 Pro ships Class 2, unlockable to Class 3)
- Top assisted speed
- 28 mph est.
Source note
Mars 3.0 page gives no top speed; 28 mph is what Heybike states for Mars 2.5 and Ranger 3.0 Pro
- Battery
- 624 Wh (48 V × 13 Ah), removable
Source note
Volts inferred from the 54.6V charger; 13Ah computed (624Wh / 48V)
- Motor
- 750 W nominal, 1,400 W peak, rear hub
- Torque
- 95 Nm
- Pedal sensor
- Torque
- Claimed range
- Up to 65 mi (No conditions stated)
- Weight
- 70 lb with battery
- Max load
- 440 lb rider + cargo
Source note
Total weight limit, rider plus cargo
- Wheels & tires
- 20" × 4"
- Frame
- 6061 aluminum folding fat tire, full suspension (65mm coil fork + Horst-link rear)
- Charger
- 2 A
- Safety certification
- UL 2849 (e-bike system) + UL 2271 (battery)
Common questions
What is the weight limit of the Heybike Mars 3.0?
Heybike rates the Mars 3.0 for 440 lb total (rider plus cargo). At 300 lb it still goes about 28 miles in everyday riding.
Can the Heybike Mars 3.0 climb steep hills?
On throttle alone, with a 180 lb rider, it can hold 8 mph up a grade of about 22% (our estimate from its 1400 W peak power and 95 Nm). With moderate pedaling, about 24%. On a 10% hill it holds about 15 mph on throttle.
How long does the Heybike Mars 3.0 take to charge?
About 5 h 51 min from empty with the 2 A charger, or about 2 h 57 min with a 5 A fast charger. A full charge costs about $0.13 at the US average of 18.31¢/kWh, or 0.33¢ per mile.
Is the Heybike Mars 3.0 a Class 2 or Class 3 e-bike?
Heybike lists it as Class Not stated, with a top assisted speed of 28 mph and a throttle. Class 3 speeds (up to 28 mph) are limited to pedal assist; on throttle, Class 2 rules cap it at 20 mph.
Which hitch racks fit the Mars 3.0?
At 70 lb with battery (about 63 lb without it) and 4" tires, 12 of 23 hitch racks we track can carry it (some only with the battery removed).
| Kuat Piston ION 2-bike | 100 lb/bike | Fits |
| 1UP USA Super Duty Double | 100 lb/bike | Fits |
| Saris MHS 2 Bike Package | 100 lb/bike | Fits |
| Aventon Hitch Rack Pro | 85 lb/bike | Fits |
| Yakima OnRamp LX | 80 lb/bike | Fits |
| Hollywood Racks Sport Rider for Electric Bikes | 80 lb/bike | Fits |
| Hollywood Racks RV Rider E-Bike Rack | 80 lb/bike | Fits |
| Aventon Hitch Rack | 77 lb/bike | Fits |
| Yakima StageTwo | 70 lb/bike | Fits |
| Hollywood Racks Destination E | 70 lb/bike | Fits |
| Allen Sports High Capacity Locking Premier for Electric Bikes | 70 lb/bike | Fits |
| Kuat Piston Pro X 2-bike | 67 lb/bike | Fits with battery removed |
Doesn't fit: Thule Epos 2-bike (tires too wide), Yakima OnRamp (tires too wide), Thule EasyFold XT 2 (tires too wide), 1UP USA Heavy Duty Double (tires too wide), Thule T2 Pro XTR 2-bike (too heavy), Kuat NV 2.0 2-bike (too heavy), Kuat NV Base 2.0 2-bike (too heavy), Saris Door County 2-Bike Motorized (tires too wide), Saris SuperClamp G4 2-Bike (too heavy), Hollywood Racks Sport Rider SE2 (tires too wide), Saris Freedom G2 2-Bike (tires too wide).
All hitch racks →
